Washboard



FIG. 1 is a top plan view of a washboard showing my new design;

FIG. 2 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 3 is a lower end elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is an upper end elevational view thereof. 

The ornamental design for a washboard, as shown and described. 